RS49985B - DEVICE WITH TRAVEL NETWORK COVER - Google Patents

Abstract

Device (10) with a cover for the road network consisting of a frame (12) and a cover (14) for matching the frame (12), the circumferential edge of the frame (12) being made of two walls (24, 26) forming a groove (28) which is filled with water, the cover (14) having a circumferential edge (32) which protrudes and enters the groove (28) in the closed frame position, characterized in that the cover (14) comprises at least one inclined surface (44) extending between the inner surface of the edge (32) and the circumferential zone of the inner surface of the cover plate (30) (14), at the point where the inclined surfaces are determined to rest on the outer edge of the frame (12) and thus form the cover guide (14) during its movement in relation to the frame (12), under the action of a force acting on the plate (30), in the zone on the opposite side of the inclined or inclined surfaces (44). The application has 11 more dependent requests.

Description

Technical field

The subject of the invention belongs, generally speaking, to the field of construction and mining, and more closely to the field of hydraulic engineering and foundations. The subject of the invention specifically belongs to the field of underground and underwater construction.

According to the International Classification of Patents (IPC<8>), the subject of the invention is marked and classified with the basic classification symbol E 02

D 29/14 relating to covers for inspection shafts for maintenance and si. like

and on the frames for the covers.

In particular, the invention relates to a road device, as well as to its cover. It especially relates to the device for the inspection openings of some underground corridors, both on the roadway and on the sidewalk, or to the device for covering sewage openings, such as road grates.

Travel devices of this type usually consist of one frame and one cover. The invention specifically relates to a device of this type, where the frame has one peripheral edge of the double wall that is protruding, which defines a groove into which the cover enters. In the closed position, the cover fits the frame and the said edge enters the said groove.

Technical problem

The technical problem that needs to be solved is how to structurally implement the device for the road network, i.e. for closing the inspection openings of some underground corridors, both on the roadway and on the sidewalk, i.e. a device for covering sewer openings, such as road grates, which device would be of simple construction and would allow easy movement of the cover in terms of rotation { sideways, i.e. where the cover could be moved at will, rotating or sideways.

State of the art

In the general case, in order to install the cover, which is often made of cast iron, it is necessary to lift it vertically in order to extract the edge from the groove, which is the main disadvantage, considering its mass.

Several solutions are known in the state of the art, so one of the solutions shown in the document FR-A-2 5 31 152 proposes a solution to this problem by equipping the bottom of the groove with an inclined surface, which allows the cover to move slightly laterally during installation or removal. Such a solution, however, does not allow, with less effort, to open and/or close the cover by turning it around the frame.

Another well-known solution consists in equipping the bottom of the frame groove with a guide, which enables guidance when rotating the cover around the horizontal axis. However, this solution does not allow the cover to move laterally when installing it.

The disadvantage of all known technical solutions is that they do not allow the cover to be moved either in terms of rotation or laterally.

Exposition of the essence of the invention

In view of the foregoing, the invention aims to provide a device whose lid can be moved at will, pivoting or laterally and easily.

It means that the task aims to realize a device with a cover of the type described earlier, which is indicated by the fact that the cover contains at least one slanted plane, which extends between the edge of the inner surface of the mentioned part, where the slanted planes are intended to fit into the edge groove along the circumference of the frame. This provides a solution for guiding the cover during its movement in relation to the frame, under the action of the force exerted on the mentioned element in the zone opposite the inclined plane or inclined planes.

In various embodiments, the device according to the invention contains one or more features, taken individually or in all possible technical combinations as follows: - the inclined plane or inclined planes have a cross-section in the form of a slice of a round plate; - the free end edge contains a folded part that is the limiter of the cover rotation in the direction of opening, which corresponds to the zone of the free end of the outer circumference of the frame, on which the outer surface of the cover will rest; - the cover is equipped with parts for hanging, located opposite the slope or inclined planes; - parts for hanging are in the form of an opening created in the outer surface of the lid; - parts for hanging consist of a transverse opening, made with

the rim of the cover in the zone between the rim and its edge; - the edge forms a groove in the said zone; - it also contains one lock for blocking the lid in the closed position on the frame; - the lock contains one pivot rod, equal to one tongue for locking in the form of a two-pronged folded edge, whereby the mentioned tongue is intended to go under the stop on the frame; - contains a seal placed between the lock and the cover; - the groove is filled with water and forms, together with the edge of the cover, an obstacle against stench; - the frame contains, at its base, at least one side notch, the lower front surface of which is equipped with a series of protrusions for fixing the device in the binding material and - the frame contains ribs, for fixing in its middle parts of each of the sides, where these ribs are intended to prevent bending of the frame.

The invention also aims to provide a cover for closing the passage of an emergency exit, which has a peripheral edge intended to engage with a groove on the supporting frame, wherein said groove is limited by a peripheral edge of the double-walled frame, and is characterized by the fact that the cover contains at least one inclined plane, which extends between the edge and the inner surface of the cover, intended to rest against the side of the peripheral edge of the frame with the aim of creating a cover guide during its movement in relation to the frame, under the influence of the force applied to that part, in the zone opposite the oblique plane.

Brief description of the draft images

For easier understanding of the invention and its particular advantages, as well as for showing how it can be realized in practice, the applicant refers to the attached drawing in which: - Figure 1 is a top view of the cover of the device for the road network according to this invention,

-Siika 2 is a top view of the frame of the device according to the present invention,

- Fig. 3 cross-sectional view along line III - III of the cover of the device from Figure 1,

- Siika 4 cross-sectional view along line IV - IV frame from picture 2,

- Figure 5 is an enlarged view of a part of the cover of the device from Figure 1, - Figures 6 to 10 show in an illustrative manner the procedures for mounting the cover on the frame and - Figure 11 is a view, which shows the movement in terms of rotation of the cover in relation to the frame from the closed to the open position of the device.

Detailed description of the invention

Figures 1 and 2 show a top view of the elements of one device, marked with the general symbol 10.

The device is usually made of cast iron with a rectangular or square cross-section.

In the example shown, the device 10 is intended, for example, for closing the inspection opening of some underground corridors.

The device 10 contains one frame 12, intended for installation in the road surface for access to underground corridors and one cover 14 for closing the frame 12 by overlapping.

The frame 12 contains, at each of its corners, one lateral outlet 16, 18, 20 and 22 from the base part of the frame 12, in order to improve the vertical reinforcement of the frame in the binding material of the road, e.g. in the type of concrete, and to prevent the rotation of the frame around the vertical axis, when it is exposed to the external effect of rotation. A plurality of ribs 23 extend diagonally along the lower outer surface of each outlet 16, 18, 20 and 22, to improve anchorage in the road binder, in a horizontal direction.

Additional ribs 25 for fastening are provided on the frame in the middle zones, in order to prevent bending of the frame 12 in case of loosening of the binding material.

The frame 12 also contains a rim, made with a double wall 24, 26, which are practically vertical and between them form one groove 28, in the general shape of the letter U. The height of the inner wall 24 is smaller than the height of the outer wall 26.

The cover 14, itself, consists in principle of one flat plate 30, solid or with openings, with a peripheral edge 32, starting from the inner surface of the plate 30. The plate 30 has a first row of supports 34 and 36, in the form of a flat support surface, parallel to the plate 30, as well as a second row of supports 38 and 40, placed opposite the first row of supports 34 and 36 and in the form of a support surface, which in relation to the plane of the plate 30 extends downward and in the direction of the supports 34, 36, towards each other.

In the folded state, ie. when the cover 14 rests on the frame 12, the peripheral edge 32 enters the groove 28 and rests with the supports 34, 36 on the bottom of the groove, while the supports 38 and 40 of the second row rest on the supports 41 and 41a of an adapted shape, which are placed on the bottom of the groove 28.

In addition, the frame 12 is, on the other hand, equipped with a stop 42 placed on the inner surface of the peripheral edge. This limiter 42 is preferably made with a V-shaped cross-sectional notch, open to the inside of the frame to receive one outlet 43 of a complementary shape made on the inner surface of the lid 14. The connection of this outlet 43 and the limiter 42, in connection with the state of support of the lid 14 on the frame 12, guarantees the stability of the lid 14, by resting at four points, when it is subjected to the effect of a vertical load and that, for any point of the effect of the load on the lid. This prevents any movement of the lid, which has the effect of avoiding impact sounds.

The bottom of the groove 28 is filled with water to create an odor barrier, in connection with the entry of the edge 32 into the groove 28, as shown in Figure 5.

Referring specifically to Figure 3, it can be seen that, according to the invention, the cover 14 has inclined surfaces 44, which in longitudinal section have the shape of a slice of a round plate, which extend between the inner surface of the edge 32 and the peripheral zone of the inner surface of the plate 30 of the cover 14.

These inclined surfaces 44 are located on only one side of the cover 14 and are a means of guiding the cover 14, during translation and rotation, during its movement in relation to the frame 12 under the action of force in the zone opposite the position of the inclined surfaces 44. They are provided in sufficient number to enable effective guidance of the cover, while limiting friction. For example the cover 14 has two inclined surfaces 44. The inclined surfaces 44 are placed on the side of the cover where the flat supports 34 and 36 are located.

During the installation or removal of the cover, the inclined surfaces 44 rest on the edge of the inner wall 24 of the peripheral edge of the frame 12, which allows the cover to either slide on the frame, during the movement of translation, or to rotate around a pivot axis, parallel to the frame, when the cover is rotated.

In addition, the lower end of the edge 32 of the cover 14 is made with a folded edge 45 along the side of the edge on which the inclined surfaces 44 are. This folded edge 45 is intended to prevent the cover from completely overturning in the direction of opening, thus ensuring its stabilization in the open position, in which it forms an opening angle greater than about 100° in relation to the basic plane of the frame.

In order to facilitate the holding-grip of the lid 14, it is equipped with a handle 48, which is provided along the side of the lid that is opposite the inclined surfaces 44. The peripheral edge 32 is recessed (extruded) inwards on that side of the lid and in the middle part, and the handle 48 is made in that space.

For example the handle 48 is realized during the casting of the cover 14 in the form of an opening, which passes through the cover and which can be performed directly during casting. This avoids the use of an expensive (lost) core. In that case, as shown in Figure 1, the peripheral edge 32 and the groove 28 preferably represent, in that zone, a stop to place the opening of the handle 48 outside the edge 32, with the aim of creating a seal against odors, in case of application to

sidewalks.

The handle 48 can also be realized in the form of an opening with a plug, e.g. by riveting, made in the outer surface of the cover.

Finally, the cover is also equipped with a single lock 50, which can be seen in detail in Figure 5, placed against the inclined surfaces 44, which allows the cover 14 to be locked to the frame 12.

In that picture, for example, it can be seen that the lock 50 has a locking tab 52, which is made equal to the rotating rod 54, which passes through the cover 14 and is attached by collapsing both ends 55 and 55a on this rod 54 towards the inner surface of the tab.

The rotating rod 54 is equipped with a head 56, shaped in such a way (e.g. hexagonal) that it can be rotated angularly using a suitable tool.

It is recommended to cover the head 56 with a protective cap 58.

The sealing ring 60 can be inserted between the head 56 and the cover 14, in order to ensure a seal against the release of odors and in the role of a brake of the lock 50, which prevents accidental unlocking of the lock.

In the locked position, the tongue 52 comes under the stop 59 on the frame 12, which is flush with the inner wall 24 of the frame.

With reference to figures 6 to 10, we will explain the procedure of installation, i.e. the functioning, of the cover 14 on the frame 12.

This procedure is carried out from the position shown in figure 6, in which the cover 14 rests on the edge with inclined surfaces 44 of the frame 12, whereby they exert pressure on the cover, causing translation of the latter in relation to the frame, until its edge reaches the groove (figure 7).

After that, additional pressure causes the circumferential edge to enter the groove (Figures 8 and 9).

In this position, the outlet 43 on the cover abuts the stop 42.

It can be seen from Figures 8 and 9 that during the coupling of the edge with the groove, the inclined surfaces 44 ensure the resting and sliding of the cover on the edge of the free end of the inner wall 24 of the groove, which enables the translation of the cover with a small force.

After this movement, the circumferential edge is fully retracted into the groove.

To lift the cover, reverse the procedure.

It is also convenient for the cover 14 to be pulled by the handle 48, i.e. pulls upwards, in such a way as to pull the edge out of the groove in the zone opposite the inclined surfaces 44, again using the pressure of the inclined planes on the edge of the free end of the inner wall of the groove, with the aim of moving the cover laterally.

In order to raise the cover 14, as presented in figure 11, it is sufficient to pull the cover to create a pivoting movement of the cover in the direction of arrow F, around the horizontal pivot axis, which extends through the groove.

It will be noted that during this movement the inclined surfaces also rest against the end edge of the inner wall 24 of the groove, which enables the cover to be guided during rotation.

Among other things, it will be noted that the inclined surfaces 44 also ensure the guidance of the cover during the rotation in the sense of closing and that, resting on the end edge of the inner wall of the groove, they enable assistance to the worker who operates the cover.

what's more, as seen in figure 11, the cover 14 is stabilized in the open position, during which it overlaps with the plane of the frame 12 an angle greater than 100°, on the one hand, with its inner surface, which rests against the outer wall 26 of the frame and, on the other hand, with the folded edge 45, which rests against the outer surface of the inner wall 24 of the peripheral edge of the frame.

This prevents the cover from opening completely in case of lifting.

Thus, it will be understood that this invention now explained, which uses inclined surfaces in the shape of a circular plate section to guide the cover during its movement, allows the latter to be moved either by translation, to place it on its nest and close it, or by rotation in the sense of opening and closing it. These movements are performed easily, in the case when it is not necessary to completely remove the cover.

Claims (12)

1. A device (10) with a cover for a travel slot consisting of a frame (12) and a cover (14) for fitting the frame (12), wherein the peripheral edge of the frame (12) is formed by two walls (24, 26) forming a groove (28) which is filled with water, the cover (14) having one peripheral edge (32) which is projected and enters the groove (28) in the position of a closed frame, indicated by the fact that the cover (14) contains at least one inclined surface (44), which extends between the inner surface of the edge (32) and the peripheral zone of the inner surface of the plate (30) of the cover (14), at the place where it is determined that the inclined surfaces rest on the outer edge of the frame (12) and thus form a guide for the cover (14) during its movement relative to the frame (12), under the influence of the force acting on the plate (30), in the zone of on the opposite side of the inclined or inclined surfaces (44). 2. Device according to Claim 1, characterized in that the inclined surface or surfaces (44) in the longitudinal section are shaped like a section of a circular plate. 3. Device according to Claims 1 and 2, indicated by the fact that the lower end of the edge (32) of the cover (14) is made with a folded edge (45) along the side of the edge (32) on which the inclined surfaces (44) are made, where the edge (45) represents a stop for limiting the rotation of the cover (14) in the direction of opening, in conjunction with the zone of the free end of the outer wall (26) of the frame (12), against which rests on the outer surface of the cover (14). 4. Device according to any one of Claims 1 to 3, characterized in that the cover (14) has a handle (48), made on the opposite side of the inclined or inclined surfaces (44). 5. Device according to Claim 4, characterized in that the handle (48) is designed as an opening in the outer surface of the cover (14). 6. Device according to Claim 4, characterized by the fact that the handle (48) is made in the wall of the cover (14) in the zone between the outer edge of the cover (14) and the peripheral edge (32). 7. Device according to Claim 6, indicated by in the middle part of the cover (14), on the opposite side of the inclined or inclined surfaces (44), the edge (32) is recessed inwards and in that zone the handle (48) is made. 8. A device according to any one of Claims 1 to 7, characterized in that it comprises a lock (50) for locking the cover (14) in the closed position on the frame (12). 9. Device according to claim 8, characterized in that the lock (50) comprises a pivoting rod (54) which is flush with the tongue (52) for locking, wherein the lock (50) is secured by two ends (55, 55a) of the rod (54) where in the locked position, the tongue (52) comes under the stop (59) on the frame (12), which is flush with the inner wall (24) frame (12). 1 o. Device according to Claim 9, characterized in that it contains a seal (60) placed between the lock (50) and the cover (14). 11. A device according to any one of Claims 1 to 10, characterized in that the frame (12) on its base and at each of its corners contains one lateral outlet (16, 18, 20, 22) and that it also contains several ribs (23) that extend diagonally along the lower outer surface of each outlet (16, 18, 20, 22) in order to improve the fastening in the binding material times, in the horizontal direction. 12. A device according to any of Claims 1 to 12, characterized in that on the middle parts of each of the sides of the frame (12) there are fixed ribs (25) for fastening, wherein the ribs (25) are adapted to prevent bending of the frame (12) in case of loosening of the binding material.